I watched a documentary on this the other night, which seemed to imply that the aggression was caused by the level of challenge, not by the onscreen violence. I

I watched a documentary on this the other night, which seemed to imply that the aggression was caused by the level of challenge, not by the onscreen violence. I think this was the study that was cited. http://arstechnica.com/gaming/2014/04/study-games-link-to-aggression-comes-from-challenge-not-violence/ http://arstechnica.com/gaming/2014/04/study-games-link-to-ag...